Nut-lock



E. W. SPR'AGUE.

NUT LOOK.

No. 447,703. Patented Mar. s, 1891.y

PATENT EEicE,

. EDIVARD W'. SPRAGUE, OF CENTRAL SQUARE, NEV YORK.

NUT-LOCK.

SPECIFICATION forming` part of Letters Patent N o. 447,703, dated; March 3, 1891. Application tiled April 19, 1889. Serial No. 307,669. (Model.)

To all whom it may concern.-

Be it known that I, EDWARD W. SPEAGUE, of Central Square, county of Oswego, in the State of New York, a citizen of the United States,have invented certain new and useful Improvement in Nut-Locks, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure lis a side elevation of the rail, showing the nut-lock in position. Fig. 2 is a view of the first section 4 detached. Fig. 3 is a similar view of the second section 5 and Figs. 4 and 5 are rear views of the sections a 5, respectively.

My invention relates to devices for locking the nuts upon the bolts which secure the fishplates in place upon the joints of railwayrails.

My obj ect is to provide a nut-lock for iishplates which is adapted to give the expansion and contraction of the rails, as well as to hold the nuts upon the bolts, and which can be readily applied and taken off.

My invention consists in the several novel features of construction and operation hereinafter described, and which are specifically set forth in the claims annexed. It is constructed as follows:

A represents a railway-rail meeting another rail at 1.

B is the fish-plate of any desired construction, and 2 2 the bolts holding the rails and fish-plates together by the nuts 3, either square or hexagonal.

C is the nut-lock, consisting of the sections et 5, both of them constructed from flat metalv bars, the one 4 provided with notches 6 to iit over the nut, with an elongated bolt-hole 7 adjacent to one end, and a shoulder 8, riding above the plane of that part adjacent to the bolt-hole 7 and upon the other end and upon the inner face provided with serrations 9. The other section 5 is also provided with the notch 6 to tit over the nut,a bolt-hole IO, and a projecting beveled lip or lips l1, tting the serrations 9, and with a shoulder l2 standing above the plane of that portion adjacent to the bolt-hole l0. To put this together, I screw up the bolts on the left tightly, or nearly 5o tight as to the outer one, the bolt fitting through the slot 7 at its outer end, the platesection then standing nearly in a vertical position, so that when I then throw this section down to a horizontal, after driving it until the bolt ,is in or adjacent to the right-hand end of the bolt-hole 7 and the nut is close to or against the shoulder S, the slotway 6 will slip over the bolts on either side of the joint between the rails, and this throwing down of this section will turn the end bolt sufficiently tight, and this sectiontwill lie tightly against the fish-plate. The section 5 fits over the bolt on the right after that is screwed up, and the next bolt passes through the bolthole 10 and the serrations 9 fit into or over the lip or lips ll, and the nut upon the bolt passing through the slot l0 will rest against the -shoulder 12 or sufficiently close thereto, so that it cannot t-urn to any extent. A lug I3 lcan be used upon the innerface of the section 5 at the top edge, fitting under the thread of the rail when horizontal, or when vertical can fit over the end of the fish-plate. It will thus be seen that the fish-plates being constructed with elongated bolt-holes to permit of the expansion and contraction of the rails when the rails expand the nut-lock sections will slide upon each other at their meeting-points where the serrations meet each other without causing any strain upon either of the nuts, and that also all of the nuts will be held and locked against becoming loosened.

l. The combination, with the iish-plates and the securing bolts and nuts, of a locking-bar constructed in sections, the outer ends of the sections fitting over the securing-bolt and having a shoulder bearing against the nut thereon and provided with an edge notch itting over the nut on the inner securing-bolt, one section having serrations upon its inner end and the other having like serrations lockinginto those on the othersections, as set forth.

2. The combination, with the fish-plates and the securing bolts and nuts, of a nut-locking bar constructed in sections, the outer ends of both sections being pivotally mounted upon the outer securing-bolts and each having a shoulder bearing against the nut upon the IOO seeuringdoit and each section being` notched l beveled lip or lips 11, substantially as deto fit over the nuts on the intermediate bolts, scribed. [o one section having' serrated teeth upon its In witness whereotI I have hereunto set my inner end and the other having serrated rehand this 15th day of April, 1889.

5 eesses adapted to engage with the teeth. EDXVARD \V. SPRAGUE.

3. A sh-plnte nut-look consisting; of two In presence of hairs notched to 'it over the nuts,the onebeing II. I). DENT SON,

provided with serrations 9 and the other with l T. T. DENISON. 

